<template>
  <div>
    <!-- 面包写导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row>
        <el-col>
          <el-button type="primary">添加角色</el-button>
        </el-col>
      </el-row>
      <el-table :data="rolesList" border stripe>
        <el-table-column type="expand">
          <template v-slot="scope">
            <el-row
              :class="['bbborder', i1 === 0 ? 'btborder' : '', 'vcenter']"
              v-for="(item1, i1) in scope.row.children"
              :key="item1.id"
            >
              <el-col :span="5">
                <el-tag closable @close="handleClose(scope.row, item1.id)">{{ item1.authName }}</el-tag>
                <i class="el-icon-caret-right"></i>
              </el-col>
              <el-col :span="19">
                <el-row :class="[i2 === 0 ? '' : 'btborder','vcenter']" v-for="(item2, i2) in item1.children" :key="item2.id">
                  <el-col :span="6">
                    <el-tag type="success" closable @close="handleClose(scope.row, item2.id)">{{ item2.authName }}</el-tag>
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag
                      v-for="item3 in item2.children"
                      :key="item3.id"
                      type="warning"
                      :disable-transitions="false"
                      @close="handleClose(scope.row, item3.id)"
                      closable
                      >{{ item3.authName }}</el-tag
                    >
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="roleName" label="角色名称"></el-table-column>
        <el-table-column prop="roleDesc" label="角色描述"></el-table-column>
        <el-table-column label="操作" width="600px">
          <template v-slot="scope">
            <el-button type="primary" icon="el-icon-edit">编辑</el-button>
            <el-button type="danger" icon="el-icon-delete">删除</el-button>
            <el-button type="warning" icon="el-icon-setting" @click="handelRoles(scope.row)">分配权限</el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <el-dialog title="分配权限" :visible.sync="RolesdialogVisible" width="50%" @close="closeClear">
      <el-tree
        :data="treeList"
        :props="treeProps"
        show-checkbox
        default-expand-all
        node-key="id"
        :default-checked-keys="defKeys"
        ref="treeRef"
      ></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="RolesdialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="okRights">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      rolesList: [],
      RolesdialogVisible: false,
      treeList: [],
      treeProps: {
        children: 'children',
        label: 'authName'
      },
      defKeys: [],
      roleId: ''
    }
  },
  methods: {
    async getRolesList() {
      const { data: res } = await this.$http.get('roles')
      // console.log(res);
      this.rolesList = res.data
    },
    async handleClose(row, rightId) {
      const confirmRes = await this.$confirm('确定移除此用户权限么?', '删除提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmRes !== 'confirm') return this.$message.info('取消了删除')
      const { data: res } = await this.$http.delete(`roles/${row.id}/rights/${rightId}`)
      if (res.meta.status !== 200) return this.$message.error('移除权限失败！')
      row.children = res.data
    },
    async handelRoles(role) {
      this.roleId = role.id
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) return this.$message.error('获取权限列表失败!')
      this.treeList = res.data
      this.getdefkeys(role, this.defKeys)
      // console.log(this.defKeys)

      this.RolesdialogVisible = true
    },
    getdefkeys(node, arr) {
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach(item => {
        this.getdefkeys(item, arr)
      })
    },
    closeClear() {
      this.defKeys = []
    },
    async okRights() {
      const keys = [...this.$refs.treeRef.getCheckedKeys(), ...this.$refs.treeRef.getHalfCheckedNodes()]
      // console.log(keys)
      const keyStr = keys.join(',')
      const { data: res } = await this.$http.post(`roles/${this.roleId}/rights`, { rids: keyStr })

      if (res.meta.status !== 200) return this.$message.error('分配权限失败!')
      this.$message.success('分配权限成功!')
      this.getRolesList()
      this.RolesdialogVisible = false
    }
  },
  created() {
    this.getRolesList()
  }
}
</script>

<style lang="less" scoped>
.el-tag {
  margin: 10px;
}
.btborder {
  border-top: 1px solid #ccc;
}
.bbborder {
  border-bottom: 1px solid #ccc;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>
